Title :
A microstrip mixer receiving antenna for maximum conversion gain for mobile applications
Author :
Segovia-Vargas, D. ; Manceras, D. ; Castro-Galán, D. ; González-Posadas, V.
Author_Institution :
Dpt. TSC, Univ. Carlos III de Madrid, Leganes, Spain
Abstract :
This paper is devoted to the construction of a mixer active antenna based on a FET transconductance mixer. The choice of a FET mixing active antenna has been done because of the better performance in terms of gain of FET mixers in front of diode mixers. Besides, a study of the mixer RF impedance has shown a dependence of the conversion gain on the impedance of the RF port. This study has revealed the existence of optimum impedance for maximum gain conversion. This impedance can be provided by the patch itself resulting in a maximum gain mixing active antenna.
Keywords :
UHF antennas; UHF mixers; active antennas; antenna theory; electric impedance; field effect transistor circuits; gain measurement; microstrip antennas; mobile antennas; receiving antennas; FET transconductance mixer; RF port; maximum gain conversion; maximum gain mixing active antenna; microstrip mixer receiving antenna; mixer RF impedance; mixer active antenna; mobile applications; optimum impedance; patch; Antenna feeds; FETs; Gain; Impedance; Microstrip antennas; Mobile antennas; Radio frequency; Receiving antennas; Transconductance; Transmitting antennas;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2005 IEEE
Print_ISBN :
0-7803-8883-6
DOI :
10.1109/APS.2005.1551777
